This is a pretty common question. Some newbcakes will ask, “Will my domain name affect my PPC campaigns? Is spending $500 (or a lot more) on a short-tail and / or brandable, domain name worth it? Or should you just spend $9 on a non-generic, “who gives a fuck” domain name?”
If you know anything, then yes, absolutely everything you do in PPC will have an effect on something else, including the domain name.
For the most part gurus talk out their asses when they give advice, so how about we post some cold hard data? PPC.bz drops the knowledge once again.
Read this Case Study on Improving CTR with a generic domain name by MemorableDomains then stop asking stupid questions.